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Switched shunt

asked Apr 21 '0

EM gravatar image

Is it possible somehow to plot in dynamics simulation curve of switched shunt reactive power? Model is CSSCST

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VAR(L+2) for this model can be included in your output simulation channels. find the VAR number for this VAR(L+2) of the model via DOCU/DLST and add it as a channel. This is the admittance (Y) of the switched shunt and you may want to do something with it in order to plot the reactive power.

lmcqueen gravatar imagelmcqueen (Apr 21 '0)

I have problem to add VAR(l+2) to plot channel. Can you give me some points?

EM gravatar imageEM (Apr 22 '0)

What specific problem is it? I agree with perolofl to plot the reactive power by method 2 described below.

lmcqueen gravatar imagelmcqueen (Apr 22 '0)

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answered Apr 21 '0

perolofl gravatar image

As ffl wrote in his comment you can plot the admittance in VAR(L+2).

Reactive power Q can be plotted in two ways:

  1. Multiply the admittance with the voltage in square when plotting.
  2. Split the bus and move the switched shunt to the new bus. Add MW & Mvar channels for the zero impedance line inserted between the new bus and the original bus.

I prefer alternative 2.

link

Comments

thanks! I use method 2. But it when plotting, curve is showing near zero MVAr, but in static mode switched shunt gives about 65 MVar.

EM gravatar imageEM (Apr 28 '0)

Is the shunt Mvar flowing on the monitored line? Did you add the correct line channel? You did something wrong.

perolofl gravatar imageperolofl (Apr 28 '0)

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Asked: Apr 21 '0

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Last updated: Apr 21 '20